<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>0122-8706</journal-id>
<journal-title><![CDATA[Ciencia y Tecnología Agropecuaria]]></journal-title>
<abbrev-journal-title><![CDATA[Cienc. Tecnol. Agropecuaria]]></abbrev-journal-title>
<issn>0122-8706</issn>
<publisher>
<publisher-name><![CDATA[Corporación Colombiana de Investigación Agropecuaria - Corpoica]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0122-87062019000100005</article-id>
<article-id pub-id-type="doi">10.21930/rcta.vol20_num1_art:1247</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Efecto del encalado en el uso eficiente de macronutrientes para cacao (Theobroma cacao L.) en la Amazonia colombiana]]></article-title>
<article-title xml:lang="en"><![CDATA[Liming effect on macronutrient intake for cacao (Theobroma cacao L.) in the Colombian Amazon]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rosas-Patiño]]></surname>
<given-names><![CDATA[Gelber]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Puentes-Páramo]]></surname>
<given-names><![CDATA[Yina Jazbleidi]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Menjivar-Flores]]></surname>
<given-names><![CDATA[Juan Carlos]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rojas Molina]]></surname>
<given-names><![CDATA[Jairo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad de la Amazonia  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,yjpuentesp@unal.edu.co  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad Nacional de Colombia  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Corporación Colombiana de Investigación Agropecuaria  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Colombia</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>04</month>
<year>2019</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>04</month>
<year>2019</year>
</pub-date>
<volume>20</volume>
<numero>1</numero>
<fpage>5</fpage>
<lpage>28</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_arttext&amp;pid=S0122-87062019000100005&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_abstract&amp;pid=S0122-87062019000100005&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_pdf&amp;pid=S0122-87062019000100005&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen En la Amazonia colombiana, el cultivo de cacao (Theobroma cacao L.) presenta bajo rendimiento debido a que la alta acidez del suelo limita el uso eficiente de nutrientes. Por lo tanto, esta investigación evalúa el efecto del encalado y la fertilización en un suelo acido (Typic Udorthents) de la Amazonia colombiana sobre el uso eficiente de nutrientes (uen), en términos de la eficiencia agronómica (ea) y la eficiencia de recuperación del fertilizante (erf) para nitrógeno (N), fosforo (P) y potasio (K), y cuatro clones universales de cacao fino de sabor y aroma. Se utilizo un diseño en bloques completos al azar con arreglo factorial, siendo el factor A cuatro clones (a1: ICS-1, a2: CCN-51, a3: ICS-39, y a4: TSH-565) y el factor B cuatro niveles de fertilidad (b1: control absoluto; b2: suelo 90 días después de encalado (dde); b3: control absoluto más N-P-K, hasta alcanzar los requerimientos del cultivo; b4: b2 más N-P-K, hasta alcanzar los requerimientos del cultivo). Los resultados muestran que el encalado y la fertilización afectaron el uen y el rendimiento; mientras tanto, el más bajo rendimiento se presentó en b1 para todos los clones, sugiriendo que la fertilidad del suelo natural no es suficiente para el desarrollo del cultivo de cacao; además, el clon CCN-51 mostro mayor habilidad en el uso de nutrientes que los restantes clones. En este sentido, los cuatro clones respondieron de forma diferencial de acuerdo con la ea y la erf, evidenciando la influencia del genotipo y de las condiciones edafoclimáticas de la zona, así como las preferencias específicas de pH y nutrientes para cada clon.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract In the Colombian Amazon, cacao tree (Theobroma cacao L.) plantations have low yield due to soil acidity which limits the efficient use of nutrients. Therefore, the aim of this study was to evaluate the effect of liming and fertilization in an acid soil (Typic Udorthents) of the Colombian Amazon on the efficient use of nutrients in terms of nutrient use efficiency (nue) and fertilizer recovery efficiency (fre) for N, P and K, in four universal clones of fine cocoa flavor and bouquet. A completely randomized block design was used using a factorial arrangement, being factor A, four clones (a1: ICS-1, a2: CCN-51, a3: ICS-39, and a4: TSH-565) and factor B, four fertility levels (b1: absolute control, b2: soil 90 days after liming (dal), b3: absolute control plus N-P-K until reaching the requirements of the crop, and b4: b2 plus N-P-K until reaching the requirements of the crop). Results show that liming and fertilization affect nue and yield, meanwhile, the lowest yield was found in b1 for all the clones, suggesting that the natural soil fertility is not sufficient for cacao tree development. Clone CCN-51 was more efficient in the use of nutrients than the other clones, in this sense, the four clones responded differentially according to nue and fre, evidencing the influence of the genotype, the edaphoclimatic conditions of the area, as well as specific of pH and nutrient preferences for each clone.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[fosforo]]></kwd>
<kwd lng="es"><![CDATA[nitrógeno]]></kwd>
<kwd lng="es"><![CDATA[potasio]]></kwd>
<kwd lng="es"><![CDATA[rendimiento de cultivos]]></kwd>
<kwd lng="es"><![CDATA[suelo acido]]></kwd>
<kwd lng="en"><![CDATA[acid soil]]></kwd>
<kwd lng="en"><![CDATA[crop yield]]></kwd>
<kwd lng="en"><![CDATA[nitrogen]]></kwd>
<kwd lng="en"><![CDATA[phosphorus]]></kwd>
<kwd lng="en"><![CDATA[potassium]]></kwd>
</kwd-group>
</article-meta>
</front><back>
<ref-list>
<ref id="B1">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Aikpokpodion]]></surname>
<given-names><![CDATA[P. E.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Nutrients Dynamics in Cocoa Soils, Leaf and Beans in Ondo State, Nigeria]]></article-title>
<source><![CDATA[Journal of Agricultural Sciences]]></source>
<year>2010</year>
<volume>1</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>1-9</page-range></nlm-citation>
</ref>
<ref id="B2">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Anghinoni]]></surname>
<given-names><![CDATA[I]]></given-names>
</name>
<name>
<surname><![CDATA[Volkart]]></surname>
<given-names><![CDATA[C. R]]></given-names>
</name>
<name>
<surname><![CDATA[Fattore]]></surname>
<given-names><![CDATA[N]]></given-names>
</name>
<name>
<surname><![CDATA[Ernani]]></surname>
<given-names><![CDATA[P. R.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Morfologia de raizes e cinetica da absorcao de nutrientes em diversas especies e genotipos de plantas]]></article-title>
<source><![CDATA[Revista Brasileira de Ciência do Solo]]></source>
<year>1989</year>
<volume>13</volume>
<page-range>355-61</page-range></nlm-citation>
</ref>
<ref id="B3">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Baligar]]></surname>
<given-names><![CDATA[V. C]]></given-names>
</name>
<name>
<surname><![CDATA[Fageria]]></surname>
<given-names><![CDATA[N. K]]></given-names>
</name>
<name>
<surname><![CDATA[He]]></surname>
<given-names><![CDATA[Z. L.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Nutrient use efficiency in plants]]></article-title>
<source><![CDATA[Communications in Soil Science and Plant Analysis]]></source>
<year>2001</year>
<volume>32</volume>
<numero>7</numero>
<issue>7</issue>
<page-range>921-50</page-range></nlm-citation>
</ref>
<ref id="B4">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Baligar]]></surname>
<given-names><![CDATA[V. C]]></given-names>
</name>
<name>
<surname><![CDATA[Fageria]]></surname>
<given-names><![CDATA[N. K.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Aluminum influence on growth and uptake of micronutrients by cacao]]></article-title>
<source><![CDATA[Journal of food agriculture and environment]]></source>
<year>2005</year>
<volume>3</volume>
<numero>3-4</numero>
<issue>3-4</issue>
<page-range>173-7</page-range></nlm-citation>
</ref>
<ref id="B5">
<nlm-citation citation-type="confpro">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Cábala]]></surname>
<given-names><![CDATA[R. P]]></given-names>
</name>
<name>
<surname><![CDATA[Miranda]]></surname>
<given-names><![CDATA[E. D]]></given-names>
</name>
<name>
<surname><![CDATA[Prado]]></surname>
<given-names><![CDATA[E. P.]]></given-names>
</name>
</person-group>
<source><![CDATA[3rd International Cocoa Research Conference]]></source>
<year>1969</year>
<conf-name><![CDATA[ Efeito da remoção de sombra e da aplicação de fertilizantes sobre a produção do cacaueiro na Bahia]]></conf-name>
<conf-loc>Tafo, Ghana </conf-loc>
</nlm-citation>
</ref>
<ref id="B6">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Casierra]]></surname>
<given-names><![CDATA[P. F]]></given-names>
</name>
<name>
<surname><![CDATA[Aguilar]]></surname>
<given-names><![CDATA[A. O.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Stress for aluminum in plants: reactions in the soil, symptoms in plants and amelioration possibilities. A review]]></article-title>
<source><![CDATA[Colombian Journal of Horticultural Science]]></source>
<year>2007</year>
<volume>1</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>246-57</page-range></nlm-citation>
</ref>
<ref id="B7">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Castro]]></surname>
<given-names><![CDATA[H]]></given-names>
</name>
<name>
<surname><![CDATA[Munévar]]></surname>
<given-names><![CDATA[O.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Mejoramiento químico de suelos ácidos mediante el uso combinado de materiales encalantes]]></article-title>
<source><![CDATA[Revista UDCA. Actualidad &amp; Divulgación Científica]]></source>
<year>2013</year>
<volume>16</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>409-16</page-range></nlm-citation>
</ref>
<ref id="B8">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Dahajipour]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Ghanati]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
<name>
<surname><![CDATA[Fujiwara]]></surname>
<given-names><![CDATA[T.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Interaction between boron and aluminum and their effects on phenolic metabolism of Linum usitatissimum L. roots]]></article-title>
<source><![CDATA[Plant Physiology and Biochemistry]]></source>
<year>2011</year>
<volume>49</volume>
<page-range>1377-83</page-range></nlm-citation>
</ref>
<ref id="B9">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Diaz]]></surname>
<given-names><![CDATA[L. E]]></given-names>
</name>
<name>
<surname><![CDATA[Loeza]]></surname>
<given-names><![CDATA[C. J. M]]></given-names>
</name>
<name>
<surname><![CDATA[Brena]]></surname>
<given-names><![CDATA[H. I]]></given-names>
</name>
<name>
<surname><![CDATA[Campos]]></surname>
<given-names><![CDATA[P. J. M]]></given-names>
</name>
<name>
<surname><![CDATA[Orlando]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
<name>
<surname><![CDATA[Orlando]]></surname>
<given-names><![CDATA[G., I. J.]]></given-names>
</name>
<name>
<surname><![CDATA[Salgado]]></surname>
<given-names><![CDATA[B. G.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Eficiencia agronómica del fosforo, biomasa y rendimiento de dos variedades nativas de maiz y un hibrido en el centro de Mexico]]></article-title>
<source><![CDATA[Fyton]]></source>
<year>2014</year>
<volume>83</volume>
<page-range>171-8</page-range></nlm-citation>
</ref>
<ref id="B10">
<nlm-citation citation-type="book">
<collab>Federación Nacional de Cacaoteros de Colombia (Fedecacao)</collab>
<source><![CDATA[Guía Ambiental para el Cultivo del cacao]]></source>
<year>2013</year>
<edition>2a ed</edition>
<publisher-loc><![CDATA[Bogota ]]></publisher-loc>
<publisher-name><![CDATA[Colombia]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B11">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Fisher]]></surname>
<given-names><![CDATA[K. A.]]></given-names>
</name>
<name>
<surname><![CDATA[Yarwood]]></surname>
<given-names><![CDATA[S. A]]></given-names>
</name>
<name>
<surname><![CDATA[James]]></surname>
<given-names><![CDATA[B. R.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Soil urease activity and bacterial ureC gene copy numbers: Effect of pH]]></article-title>
<source><![CDATA[Geoderma]]></source>
<year>2017</year>
<volume>285</volume>
<page-range>1-8</page-range></nlm-citation>
</ref>
<ref id="B12">
<nlm-citation citation-type="">
<collab>Instituto de Hidrología y Estudios Ambientales (ideam)</collab>
<source><![CDATA[Indicadores climáticos]]></source>
<year>2017</year>
</nlm-citation>
</ref>
<ref id="B13">
<nlm-citation citation-type="book">
<collab>Instituto Geográfico Agustín Codazzi (igac)</collab>
<source><![CDATA[Estudio general de suelos y zonificación de tierras: departamento de Caquetá. Escala 1:100.000]]></source>
<year>2014</year>
<publisher-loc><![CDATA[Bogota, Colombia ]]></publisher-loc>
<publisher-name><![CDATA[Instituto Geográfico Agustín Codazzi (igac)]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B14">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Kass]]></surname>
<given-names><![CDATA[D. C. L.]]></given-names>
</name>
</person-group>
<source><![CDATA[Fertilidad de suelos]]></source>
<year>1998</year>
<publisher-loc><![CDATA[San Jose, Costa Rica ]]></publisher-loc>
<publisher-name><![CDATA[Editorial de la Universidad Estatal a Distancia (euned)]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B15">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Koko]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Teractiv Cacao as a new fertilizer based Reactive Phosphate Rock for cocoa productivity in Cote d&#8217;Ivoire: A participatory approach to update fertilization recommendation]]></article-title>
<source><![CDATA[Procedia Engineering]]></source>
<year>2014</year>
<volume>83</volume>
<page-range>348-53</page-range></nlm-citation>
</ref>
<ref id="B16">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Kurwakumire]]></surname>
<given-names><![CDATA[N]]></given-names>
</name>
<name>
<surname><![CDATA[Chikowo]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[Mtambanengwe]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
<name>
<surname><![CDATA[Mapfumo]]></surname>
<given-names><![CDATA[P]]></given-names>
</name>
<name>
<surname><![CDATA[Snapp]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Zingore]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Maize productivity and nutrient and water use efficiencies across soil fertility domains on smallholder farms in Zimbabwe]]></article-title>
<source><![CDATA[Field Crops Research]]></source>
<year>2014</year>
<volume>164</volume>
<page-range>136-47</page-range></nlm-citation>
</ref>
<ref id="B17">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Lavres]]></surname>
<given-names><![CDATA[J. J]]></given-names>
</name>
<name>
<surname><![CDATA[Reis]]></surname>
<given-names><![CDATA[A. R]]></given-names>
</name>
<name>
<surname><![CDATA[Rossi]]></surname>
<given-names><![CDATA[M. L]]></given-names>
</name>
<name>
<surname><![CDATA[Cabral]]></surname>
<given-names><![CDATA[C. P]]></given-names>
</name>
<name>
<surname><![CDATA[Nogueira]]></surname>
<given-names><![CDATA[N. L]]></given-names>
</name>
<name>
<surname><![CDATA[Malavolta]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Changes in the ultrastructure of soybean cultivars in response to manganese supply in solution culture]]></article-title>
<source><![CDATA[Scientia Agricola]]></source>
<year>2010</year>
<volume>67</volume>
<page-range>287-94</page-range></nlm-citation>
</ref>
<ref id="B18">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[López]]></surname>
<given-names><![CDATA[B. W]]></given-names>
</name>
<name>
<surname><![CDATA[Urbina]]></surname>
<given-names><![CDATA[H. L.H]]></given-names>
</name>
<name>
<surname><![CDATA[Reynoso]]></surname>
<given-names><![CDATA[S. R]]></given-names>
</name>
<name>
<surname><![CDATA[Martínez]]></surname>
<given-names><![CDATA[S. J.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Efectos del encalado en suelo acido cultivado con cafe (Coffea arabica L.) en la reserva de la biosfera el triunfo, Chiapas, Mexico]]></article-title>
<source><![CDATA[Agroproductividad]]></source>
<year>2018</year>
<volume>11</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>55-60</page-range></nlm-citation>
</ref>
<ref id="B19">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Malavolta]]></surname>
<given-names><![CDATA[E]]></given-names>
</name>
<name>
<surname><![CDATA[Vitty]]></surname>
<given-names><![CDATA[G. C]]></given-names>
</name>
<name>
<surname><![CDATA[de Oliveira]]></surname>
<given-names><![CDATA[S. A.]]></given-names>
</name>
</person-group>
<source><![CDATA[Availação do estado nutricional das plantas. Principios e aplicações]]></source>
<year>1997</year>
<edition>2a ed.</edition>
<publisher-loc><![CDATA[Piracicaba, Brasil ]]></publisher-loc>
<publisher-name><![CDATA[Associacao Brasileira para Pesquisa da Potassa e do Fosfato]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B20">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Marschner]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
</person-group>
<source><![CDATA[Mineral nutrition of higher plants]]></source>
<year>1995</year>
<edition>2ª ed.</edition>
<publisher-loc><![CDATA[Nueva York, EE. UU. ]]></publisher-loc>
<publisher-name><![CDATA[Academic Press]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B21">
<nlm-citation citation-type="">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Mora]]></surname>
<given-names><![CDATA[R. J]]></given-names>
</name>
<name>
<surname><![CDATA[Burbano]]></surname>
<given-names><![CDATA[O. H]]></given-names>
</name>
<name>
<surname><![CDATA[Ballesteros]]></surname>
<given-names><![CDATA[P. W.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Efecto de la fertilización con diversas fuentes sobre el rendimiento de cacao]]></article-title>
<source><![CDATA[Revista de Ciencias Agrícolas]]></source>
<year>2011</year>
<volume>28</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>81-94</page-range></nlm-citation>
</ref>
<ref id="B22">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Navarro]]></surname>
<given-names><![CDATA[B. S]]></given-names>
</name>
<name>
<surname><![CDATA[Navarro]]></surname>
<given-names><![CDATA[G. G.]]></given-names>
</name>
</person-group>
<source><![CDATA[Química agrícola: El suelo y los elementos químicos esenciales para la vida vegetal]]></source>
<year>2003</year>
<edition>2a ed.</edition>
<publisher-loc><![CDATA[Madrid, Espana ]]></publisher-loc>
<publisher-name><![CDATA[Ediciones Mundi-Prensa]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B23">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Puentes]]></surname>
<given-names><![CDATA[P. Y. J]]></given-names>
</name>
<name>
<surname><![CDATA[Menjívar]]></surname>
<given-names><![CDATA[F. J. C]]></given-names>
</name>
<name>
<surname><![CDATA[Ortiz]]></surname>
<given-names><![CDATA[C. A. M.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Eficiencia fisiologica de uso de npk en clones autoincompatible y autocompatible de cacao (Theobroma cacao L.) en Colombia]]></article-title>
<source><![CDATA[Revista de Investigación Agraria y Ambiental]]></source>
<year>2016</year>
<volume>7</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>17-24</page-range></nlm-citation>
</ref>
<ref id="B24">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Puentes]]></surname>
<given-names><![CDATA[P. Y. J]]></given-names>
</name>
<name>
<surname><![CDATA[Menjívar]]></surname>
<given-names><![CDATA[F. J. C]]></given-names>
</name>
<name>
<surname><![CDATA[Aránzazu]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Eficiencia en el uso de nitrógeno, fosforo y potasio en clones de cacao (Theobroma cacao L.)]]></article-title>
<source><![CDATA[Bioagro]]></source>
<year>2014</year>
<volume>26</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>99-106</page-range></nlm-citation>
</ref>
<ref id="B25">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Puentes]]></surname>
<given-names><![CDATA[P. Y. J]]></given-names>
</name>
<name>
<surname><![CDATA[Menjívar]]></surname>
<given-names><![CDATA[F. J. C]]></given-names>
</name>
<name>
<surname><![CDATA[Gómez]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Aránzazu]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Absorcion y distribucion de nutrientes en clones de cacao y sus efectos en el rendimiento]]></article-title>
<source><![CDATA[Acta Agronómica]]></source>
<year>2014</year>
<volume>63</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>145-52</page-range></nlm-citation>
</ref>
<ref id="B26">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Quesada]]></surname>
<given-names><![CDATA[C. A]]></given-names>
</name>
<name>
<surname><![CDATA[Lloyd]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Anderson]]></surname>
<given-names><![CDATA[L. O]]></given-names>
</name>
<name>
<surname><![CDATA[Fyllas]]></surname>
<given-names><![CDATA[N. M]]></given-names>
</name>
<name>
<surname><![CDATA[Schwarz]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Czimczik]]></surname>
<given-names><![CDATA[C. I.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Soils of Amazonia with particular reference to the rainfor sites]]></article-title>
<source><![CDATA[Biogeosciences]]></source>
<year>2011</year>
<volume>8</volume>
<page-range>1415-40</page-range></nlm-citation>
</ref>
<ref id="B27">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Quinteiro]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Furtado]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Schramm]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Pinto]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
<name>
<surname><![CDATA[Viana]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[C.]]></surname>
<given-names><![CDATA[V.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Aluminum effects on growth photosynthesis and mineral nutrition of cacao genotypes]]></article-title>
<source><![CDATA[Journal of Plant Nutrition]]></source>
<year>2013</year>
<volume>36</volume>
<numero>8</numero>
<issue>8</issue>
<page-range>1161-79</page-range></nlm-citation>
</ref>
<ref id="B28">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ribeiro]]></surname>
<given-names><![CDATA[M. A]]></given-names>
</name>
<name>
<surname><![CDATA[da Silva]]></surname>
<given-names><![CDATA[J. O]]></given-names>
</name>
<name>
<surname><![CDATA[Aitken]]></surname>
<given-names><![CDATA[W. M]]></given-names>
</name>
<name>
<surname><![CDATA[Machado]]></surname>
<given-names><![CDATA[R. C. R]]></given-names>
</name>
<name>
<surname><![CDATA[Baligar]]></surname>
<given-names><![CDATA[V. C.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Nitrogen use efficiency in cocoa genotypes]]></article-title>
<source><![CDATA[Journal of Plant Nutrition]]></source>
<year>2008</year>
<volume>31</volume>
<page-range>239-49</page-range></nlm-citation>
</ref>
<ref id="B29">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Romero]]></surname>
<given-names><![CDATA[L. M. P]]></given-names>
</name>
<name>
<surname><![CDATA[Puentes]]></surname>
<given-names><![CDATA[P. Y. J]]></given-names>
</name>
<name>
<surname><![CDATA[Menjívar]]></surname>
<given-names><![CDATA[F. J. C.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Eficiencia de uso de nutrientes en aji tabasco (Capsicum frutescens L.) y habanero (Capsicum chinense Jacq)]]></article-title>
<source><![CDATA[Revista de Investigación Agraria y Ambiental]]></source>
<year>2016</year>
<volume>7</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>121-7</page-range></nlm-citation>
</ref>
<ref id="B30">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Rosas]]></surname>
<given-names><![CDATA[P. G]]></given-names>
</name>
<name>
<surname><![CDATA[Puentes]]></surname>
<given-names><![CDATA[P. Y. J]]></given-names>
</name>
<name>
<surname><![CDATA[Menjívar]]></surname>
<given-names><![CDATA[F. J. C.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Relacion entre el pH y la disponibilidad de nutrientes para cacao en un entisol de la Amazonia colombiana]]></article-title>
<source><![CDATA[Corpoica Ciencia y Tecnología Agropecuaria]]></source>
<year>2017</year>
<volume>18</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>529-41</page-range></nlm-citation>
</ref>
<ref id="B31">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Rosas]]></surname>
<given-names><![CDATA[P. G]]></given-names>
</name>
<name>
<surname><![CDATA[Rodríguez]]></surname>
<given-names><![CDATA[P. W]]></given-names>
</name>
<name>
<surname><![CDATA[Muñoz]]></surname>
<given-names><![CDATA[R. J.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Caracterizacion edafologica de lomerios bajo sistema agroforestal y rastrojo en el Centro de Investigaciones Amazonicas Macagual, Caquetá-Colombia]]></article-title>
<source><![CDATA[Momentos de Ciencia]]></source>
<year>2012</year>
<volume>9</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>153-61</page-range></nlm-citation>
</ref>
<ref id="B32">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Sadeghian]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Respuesta de cafetales al sol y bajo semisombra a nitrógeno y su relación con la materia organica del suelo]]></article-title>
<source><![CDATA[Revista Facultad Nacional de Agronomía-Medellín]]></source>
<year>2011</year>
<volume>64</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>5781-91</page-range></nlm-citation>
</ref>
<ref id="B33">
<nlm-citation citation-type="">
<collab>SAS</collab>
<source><![CDATA[User&#8217;s guide: Statistics]]></source>
<year>2014</year>
</nlm-citation>
</ref>
<ref id="B34">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Schlindwein]]></surname>
<given-names><![CDATA[J. A]]></given-names>
</name>
<name>
<surname><![CDATA[Gianello]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Necessidades de novos estudos de calibracao e recomendacao de fertilizantes para as culturas cultivadas sob plantio direto]]></article-title>
<source><![CDATA[Revista Plantio Direto]]></source>
<year>2004</year>
<volume>79</volume>
<page-range>12-5</page-range></nlm-citation>
</ref>
<ref id="B35">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Shamshuddin]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Muhrizal]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Fauziah]]></surname>
<given-names><![CDATA[I]]></given-names>
</name>
<name>
<surname><![CDATA[Husni]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Effects of adding organic materials to an acid sulfate soil on the growth of cocoa (Theobroma cacao L.) seedlings]]></article-title>
<source><![CDATA[Science of the Total Environment]]></source>
<year>2004</year>
<volume>323</volume>
<page-range>33-45</page-range></nlm-citation>
</ref>
<ref id="B36">
<nlm-citation citation-type="book">
<collab>Soil Survey Staff</collab>
<source><![CDATA[Keys to Soil Taxonomy]]></source>
<year>2010</year>
<edition>11a ed.</edition>
<publisher-loc><![CDATA[Washington, EE. UU. ]]></publisher-loc>
<publisher-name><![CDATA[United States Department of Agriculture (usda), Natural Resources Conservation Service (nrcs)]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B37">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Zhu]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Li]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Whelan]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Phosphorus activators contribute to legacy phosphorus availability in agricultural soils: A review]]></article-title>
<source><![CDATA[Science of the Total Environment]]></source>
<year>2018</year>
<volume>612</volume>
<page-range>522-37</page-range></nlm-citation>
</ref>
</ref-list>
</back>
</article>
